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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#include "SndFileWriter.h"
#include "Exception.h"
#include <cstring>
AUD_NAMESPACE_BEGIN
SndFileWriter::SndFileWriter(std::string filename, DeviceSpecs specs,
Container format, Codec codec, unsigned int bitrate) :
m_position(0), m_specs(specs)
{
SF_INFO sfinfo;
sfinfo.channels = specs.channels;
sfinfo.samplerate = int(specs.rate);
switch(format)
{
case CONTAINER_FLAC:
sfinfo.format = SF_FORMAT_FLAC;
switch(specs.format)
{
case FORMAT_S16:
sfinfo.format |= SF_FORMAT_PCM_16;
break;
case FORMAT_S24:
sfinfo.format |= SF_FORMAT_PCM_24;
break;
case FORMAT_S32:
sfinfo.format |= SF_FORMAT_PCM_32;
break;
case FORMAT_FLOAT32:
sfinfo.format |= SF_FORMAT_FLOAT;
break;
case FORMAT_FLOAT64:
sfinfo.format |= SF_FORMAT_DOUBLE;
break;
default:
sfinfo.format = 0;
break;
}
break;
case CONTAINER_OGG:
if(codec == CODEC_VORBIS)
sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS;
else
sfinfo.format = 0;
break;
case CONTAINER_WAV:
sfinfo.format = SF_FORMAT_WAV;
switch(specs.format)
{
case FORMAT_U8:
sfinfo.format |= SF_FORMAT_PCM_U8;
break;
case FORMAT_S16:
sfinfo.format |= SF_FORMAT_PCM_16;
break;
case FORMAT_S24:
sfinfo.format |= SF_FORMAT_PCM_24;
break;
case FORMAT_S32:
sfinfo.format |= SF_FORMAT_PCM_32;
break;
case FORMAT_FLOAT32:
sfinfo.format |= SF_FORMAT_FLOAT;
break;
case FORMAT_FLOAT64:
sfinfo.format |= SF_FORMAT_DOUBLE;
break;
default:
sfinfo.format = 0;
break;
}
break;
default:
sfinfo.format = 0;
break;
}
if(sfinfo.format == 0)
AUD_THROW(FileException, "This format couldn't be written with libsndfile.");
m_sndfile = sf_open(filename.c_str(), SFM_WRITE, &sfinfo);
if(!m_sndfile)
AUD_THROW(FileException, "The file couldn't be written with libsndfile.");
}
SndFileWriter::~SndFileWriter()
{
sf_close(m_sndfile);
}
int SndFileWriter::getPosition() const
{
return m_position;
}
DeviceSpecs SndFileWriter::getSpecs() const
{
return m_specs;
}
void SndFileWriter::write(unsigned int length, sample_t* buffer)
{
length = sf_writef_float(m_sndfile, buffer, length);
m_position += length;
}
AUD_NAMESPACE_END
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